| /* |
| * Copyright (c) 2010 Broadcom Corporation |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #ifndef _MSGTRACE_H |
| #define _MSGTRACE_H |
| |
| /* This marks the start of a packed structure section. */ |
| #include <packed_section_start.h> |
| |
| #define MSGTRACE_VERSION 1 |
| |
| /* Message trace header */ |
| typedef BWL_PRE_PACKED_STRUCT struct msgtrace_hdr { |
| u8 version; |
| u8 spare; |
| u16 len; /* Len of the trace */ |
| u32 seqnum; /* Sequence number of message. Useful |
| * if the messsage has been lost |
| * because of DMA error or a bus reset |
| * (ex: SDIO Func2) |
| */ |
| u32 discarded_bytes; /* Number of discarded bytes because of |
| trace overflow */ |
| u32 discarded_printf; /* Number of discarded printf |
| because of trace overflow */ |
| } BWL_POST_PACKED_STRUCT msgtrace_hdr_t; |
| |
| #define MSGTRACE_HDRLEN sizeof(msgtrace_hdr_t) |
| |
| /* The hbus driver generates traces when sending a trace message. |
| * This causes endless traces. |
| * This flag must be set to true in any hbus traces. |
| * The flag is reset in the function msgtrace_put. |
| * This prevents endless traces but generates hasardous |
| * lost of traces only in bus device code. |
| * It is recommendat to set this flag in macro SD_TRACE |
| * but not in SD_ERROR for avoiding missing |
| * hbus error traces. hbus error trace should not generates endless traces. |
| */ |
| extern bool msgtrace_hbus_trace; |
| |
| typedef void (*msgtrace_func_send_t) (void *hdl1, void *hdl2, u8 *hdr, |
| u16 hdrlen, u8 *buf, |
| u16 buflen); |
| |
| extern void msgtrace_sent(void); |
| extern void msgtrace_put(char *buf, int count); |
| extern void msgtrace_init(void *hdl1, void *hdl2, |
| msgtrace_func_send_t func_send); |
| |
| /* This marks the end of a packed structure section. */ |
| #include <packed_section_end.h> |
| |
| #endif /* _MSGTRACE_H */ |
